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. 2020 Aug 21;72(6):1093–1100. doi: 10.1093/cid/ciaa1231

Table 3.

Type I Error and Power (%) for Detecting Treatment Effects

Endpoint Case 1 Case 2 Case 3 Case 4 Case 5 Case 6 Case 7 Case 8 Case 9 Case 10
Chinese remdesivir trial design
 SR15a 2.52 84.5 82.1 86.7 91.1 81.1 85.9 81.4 85.6 79.3
 ASR1–28b 2.50 89.6 87.6 91.5 93.8 88.0 90.7 87.0 89.2 82.0
 ASR8–28b 2.50 90.3 88.2 92.2 94.1 89.0 91.5 87.2 88.4 80.5
 OR15c 2.68 85.4 84.4 86.2 95.2 77.9 86.2 83.8 88.7 85.1
 OR1–28d 2.53 89.6 88.6 90.5 96.3 84.3 90.5 87.6 91.3 89.9
 OR8–28d 2.58 91.1 90.2 92.1 97.3 86.3 92.1 89.1 91.6 88.4
 TTCI 2.38 80.2 80.0 80.0 80.1 80.1 80.1 80.0 80.2 79.8
 TTR 2.37 81.8 81.8 81.5 83.0 80.4 83.1 81.0 82.4 83.0
 TTC 2.77 70.6 61.7 80.1 68.4 74.3 73.8 64.0 68.0 85.7
 TTD 2.73 55.9 46.3 66.8 42.4 72.8 61.1 47.0 37.2 1.6
 WLW-imp 2.38 86.3 86.4 85.9 90.8 84.8 92.7 79.3 88.2 85.2
 WLW-det 2.81 78.8 69.8 87.4 79.2 80.6 72.2 78.9 72.2 60.2
 WLW-ben 2.69 87.7 84.9 90.6 90.4 87.7 90.0 84.0 86.9 80.4
 WLW-rc 2.63 83.2 79.3 87.0 82.7 84.1 84.7 80.3 82.1 89.7
NIAID remdesivir trial design
 SR15a 2.57 80.6 77.9 83.2 86.2 79.9 81.9 77.2 83.8 70.5
 ASR1–28b 2.58 86.9 84.5 89.3 90.3 87.4 87.9 83.8 86.7 73.6
 ASR8–28b 2.58 87.8 85.3 90.2 91.0 88.5 89.2 84.0 85.9 72.2
 OR15c 2.58 80.6 78.6 82.4 89.5 77.4 81.1 78.9 86.2 71.2
 OR1–28d 2.46 86.3 84.5 88.2 92.1 85.1 87.4 83.8 88.6 78.7
 OR8–28d 2.53 87.8 86.1 89.6 93.9 86.3 88.7 85.4 88.7 75.3
 TTCI 2.55 75.3 74.7 75.5 70.1 79.2 73.8 76.5 71.6 68.7
 TTR 2.57 80.1 79.9 80.2 80.0 80.0 80.2 80.2 80.2 80.1
 TTC 2.57 60.8 51.4 71.0 56.4 65.7 64.0 53.3 60.1 79.6
 TTD 2.47 53.2 42.8 64.6 37.0 71.8 60.5 40.3 25.4 0.4
 MR28e 2.49 54.7 44.6 66.0 38.8 72.9 61.1 43.0 25.7 0.6
 WLW-imp 2.51 84.9 84.8 84.6 87.2 86.1 90.5 75.7 87.0 79.4
 WLW-det 2.25 66.3 55.8 77.2 66.3 69.4 50.5 79.2 45.9 35.4
 WLW-ben 2.47 84.3 80.9 87.6 85.6 86.2 84.0 83.2 79.4 68.4
 WLW-rc 2.57 79.4 75.1 83.4 77.2 81.3 80.5 76.4 78.8 86.7

Abbreviations: ASR, average severity rating; MR, mortality rate; NIAID, National Institute of Allergy and Infectious Diseases; OR, odds ratio; SR, severity rating; TTC, time to critical illness; TTCI, time to clinical improvement; TTD, time to death; TTR, time to recovery; WLW-ben, Wei-Lin-Weissfeld method for benefit; WLW-det, Wei-Lin-Weissfeld method for deterioration; WLW-imp, Wei-Lin-Weissfeld method for improvement; WLW-rc, Wei-Lin-Weissfeld method for recovery and critical illness.

aMean severity rating at day 15.

bMean of average severity rating over days 1–28 (ASR1–28) or days 8–28 (ASR8–28).

cOdds of lower severity at day 15.

dOdds of lower severity over days 1–28 (OR1–28) or days 8–28 (OR8–28).

eMortality rate at day 28.